Mason&#39;s plumb.



No. 746,554. I PATENTBD DEC. 8, 1903.,

M. MORAN & T. W. GRANT.

MASONS PLUMB-. Arrmougon rILnn'mR. 13. 1903.

H0 MODEL.

THE uonms PETERS coy. vncTo-umo" WASHINGTON. n c

UNITED STATES PatentedDecemloer 8, 1903.

PATENT OFFICE.

MASONS PLUMB.

SPECIFICATION formingpart of Letters Patent No. 746,554, d t d D b '8, 1903.

Application filed March 13, 1903. Serial No. 147,583- (No model.) i

useful improvements in plumbs for masonsf bricklayers, and other like uses; and the primary object of the invention is to construct a plumb which will permit of a considerable depth of course being laid without requiring the plumbing of the wall. In the laying of brick as generally practiced at present it is the common procedure to lay two or three courses of the brick'and then plumb the same,

then lay two or three additional courses and again plumb the same, and so onto thecompletion of the height of brick being laid. Ordinarily it is necessary with such procedure to plumb the wall several times during the laying of about six feet of brick, which is generally about the height that is laid before moving up the scafiold for the laying of another course. By the aid of our invention we are enabled to lay the entire height of six feet without plumbing the same from the beginning to the end, the plumb being maintained at all times from the beginning of the course to the end of thesame.

Itis a further object of the invention to construct a device of this character which may be attached to any angle of the wall immaterial as to whether the same is a right angle or greater or less than a right angle; and'fo'rthis reason the device may be advantageously employed in connection with the plumbing of bricks on octagonal or other shaped corners of a building, on towers, or the like.

It is a still further-object of our invention to constructa device of this character which may be extremely simple, there being few.

parts thereto, and consequently not liable to become out of order,'so that the ordinary mason or bricklayer will have no difficultyin understanding the method of using the same.

In describing the invention in detail reference is had to the accompanying drawings,

forming a part of this specification,and wherein like numerals of reference indicate like -parts throughout the several views,in which Figure l is a perspective view showing the device applied in position to the corner of a wall. Fig. 2 is an underneath plan View of the device, showing the holding'arms adjusted for engagement with the right-angular corner.

Fig. 3 is a like View showing the arms adis substantially semicircular in shape, and i the flange 2 is provided with slots 3, whereby to receive the bolts 4, carried by the securingarms 5 and 6. These securing-arms are of the ordinary length, the arm 5 being of a suflicient length to extend along the length of one brick and grip between the same and the end of the adjacent brick, while the arm 6 extends the width of one brick and grips between the side of said brick and the side of the adjacent brick. These arms are adjustable, whereby to conform to any desired angle of the Wall, and to this end they are provided with slots 7, which receive the bolt 8, passing through the slots and through the front bar 9 of the table or support 1, thearms being held in the adjusted position by means of the winged nut 10 or other suitable fastening device. After adjusted the arms are held at their outer end by means of winged nuts 11, which are tightened against the outer face of the flange 2. The arms 5 and 6 are provided at their outer ends with inturned pointed grips 12, which are adapted to engage into the mortar between two adjacent bricks. Mounted loosely in the opening or aperture let in the plate or support 1 and adapted for limited lateral movement therein is an upwardly-extending plumb-standard 15, which rests upon the central brace 16 of the table or support. At its upper end this plumbstandard 15 carries'au arm or rod 17, adjustable through the standard and held in the ad justed position by set-screw 18 or other desirable means. Connected to the inner end of this arm or rod 17 is an indicating line,

wire, or cord 19, attached at its lower end to the belt or screw 8, and also attached to the arm or rod 17 is a plumb-line 20, having a plumb 21 on its lower end, the line'being preferably passed through the eye 22 near the lower end of the plumb-standard to prevent undue swinging of the line and in order to enable the plumb to be brought to a steady position more readily. The plumb-standard 15 is adjusted toward or away from the corner of the wall by means of the adjustingbolt 23, which is connected to said plumbstandard underneath the table or support, with its threaded portion extended through flange 2 and provided with a securing-nut 24 on its outer end for holding the same in the adjusted position. The plumb-standard 15 is adjusted laterally by means of the thumb: screws 25 and 26, disposed at opposite sides of the plumb-standards in brackets 27, mounted on the upper face of the table or support at each side of the plumb-standard 15. In order to give the additional support to the device and also to permit the inclining thereof, we preferably attach to the underneath face of the brace 15 the inclined brace 28, which is adapted to engage normally with the corner of the wall, as shown in Fig. 4 0f the drawings.

The device is secured in position by engaging the grips 12 into the mortar between the bricks, and by adjusting the plumb-standard 15 so as to plumb the line 20 and indicatingline 19 the latter may be used as a plumb throughout the building of an entire height of the course, thus not necessitating any plumbing during the laying of the entire course of bricks. When the scaffold is adjusted to lay the succeeding course, the device is again placed in position, and another scafiold-high course of bricks may be laid without plumbing. It is to be noted that the device may be advantageously employed for batter-work, the indicating-line being substantially at the desired batter at which it is desired to lay the bricks or other masonry. By slotting the arms? it is to be noted that the device may be attached to the cornor to any angle, not necessitating right-angle corners for the attachment of the device in position, as is fully illustrated in Fig. 3 of the drawings.

It will be noted that various changes may be made in the details of construction without departing from the general spirit of our invention.

Having fully described our invention, what we claim as new, and desire to secure by'Letsupport or table having an overhanging slotted flange, slotted securing-arms adjustably secured to said support or table with their ends extending through and operating in said slots, an adjustable plumb-standard mounted in the support or table, means for adjusting said standard laterally, an adjustable rod carried by the said standard, a plumb-line carried by said rod, and an indicating-line secured to said rod and to the table, substantially as described.

3. In a device of the character described, a support or table, slotted securing-arms adjustably secured to said table, a plumb-standard adjustably mounted in the support or table, an adjustable rod carried by said standard, means for securing said rod in the adjusted position, a plumb carried by the rod, and an indicating-line secured to the rod and table, substantially as described.

In testimony whereof we affix our signatures in the presence of two witnesses.

MICHAEL MORAN. THOMAS W. GRANT. Witnesses:

A. M. WILSON, E. E. POTTER. 

